Delaying the api request for 60 seconds won't really affect poe.ninja. If you are looking at poe.ninja for something other than trends, averages, and historical prices it probably will, but that's an inherent problem. Most times I click the @ by conversion rates before I list anything.

It is not easy to realize the monster in yourself, truly it is not easy to create purposefully.
It is easy to realize the virtue in yourself, truly it is easy to destroy.
Contemplate which is worth your time.
-Peace-

So if I'm not big or popular enough, my app gets the bottom end of the pole?

Talk about playing favorites.

You know, you could just go ahead and fix trade so this isn't a problem... but maybe I'm a hopeless dreamer living in the year 2017.

Sniper detected.

Yes, it turns out if your [not published and only used by a single person] app is trying to access data, it'll be delayed, thus "playing favorites" by giving the advantage to the 99% that were already using the bigger sites.